search for: nr_uarts

...laptop has an > Intel processor and an Intel graphic controller. Although I can't see how > either the processor or video chipset would have anything to to with the USB > or USB serial port-type devices. The desktop also has a PCI quad serial port > card and includes the 8250.nr_uarts=8 kernel option and is set up to use an > analog dialup modem to make PPP connections (again, I don't see that as having > anything to do with anything). OK, I tried rebooting without the '8250.nr_uarts=8' option and that had no effect. I wonder if I should file a bug report?...

I have two computers: both running CentOS 6.7, 64-bit, with kernel 2.6.32-573.12.1.el6.x86_64. One is a laptop with an 2 core Intel processor and the other is a desktop machine with a 4 core AMD processor. Both with selinux enabled. I have a USB serial port device (a RR-CirKits LCC-Buffer USB). On the desktop I am getting this error: sauron.deepsoft.com% sudo minicom Device /dev/ttyACM0

Hi, I have a KVM host running ubuntu 18.04 with libguestfs-tools version 1.36.13-1ubuntu3.3 installed from the Ubuntu's repo and when I try to use virt-cat for example on a VM it fails with: libguestfs: error: appliance closed the connection unexpectedly. > libguestfs: error: guestfs_launch failed. After doing "export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1" and running the

...stfs-0/appliance.d/kernel</kernel>\n <initrd>/var/tmp/.guestfs-0/appliance.d/initrd</initrd>\n <cmdline>panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=vt220</cmdline>\n <bios useserial="yes"/>\n </os>\n <on_reboot>destroy</on_reboot>\n <devices>\n <rng model="virtio">\n <backend model="random">/dev/urandom&l...

...stfsd.sock,id=channel0 \ > -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ > -append 'panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' > libguestfs: responding to serial console Device Status Report > \x1b[1;256r\x1b[256;256H\x1b[6n > Google, Inc. > Serial Graphics Adapter 03/05/17 > SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (generic@...

...> > -device > virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ > > -append 'panic=1 console=ttyS0 edd=off udevtimeout=6000 > udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory > usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb > selinux=0 guestfs_verbose=1 TERM=xterm-256color' > > libguestfs: responding to serial console Device Status Report > > \x1b[1;256r\x1b[256;256H\x1b[6n > > Google, Inc. > > Serial Graphics Adapter 03/05/17 > > SGABIOS $Id: sgabios.S 8 2010-04-22...

.../* disable USB, only saves about 1ms */ - " cryptomgr.notests" /* disable crypto tests, saves 28ms */ - " tsc=reliable" /* don't synch TSCs when using SMP, - saves 21ms for each secondary vCPU */ - " 8250.nr_uarts=1" /* don't scan all 8250 UARTS */ - "%s" /* root=appliance_dev */ - " %s" /* selinux */ - " %s" /* quiet/verbose */ - "%s" /* network */ -...

...oBqGwV/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm' \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 06/09/14 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Mon Jun 9 21:33:48 UTC 2014 Term: 80x24 4 0 SeaBIOS (version 1.11.0-2.el7) Booting from ROM...

...t4FNb4/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' libguestfs: responding to serial console Device Status Report \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 06/09/14 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Mon Jun 9 21:33:48 U...

...ardev=channel0,name=org.libguestfs.channel.0 \ 2020-08-27 08:48:38 T libguestfs - 0 - appliance - -append "panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=8800000 printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=UUID=dd6872eb-d621-499d-be42-64d78754c255 selinux=0 guestfs_verbose=1 TERM=linux vsyscall=emulate" 2020-08-27 08:48:40 T libguestfs - 0 - library - responding to serial console Device Status Report 2020-08-27 08:48:40 T libguestfs - 0 - appliance - ^[[1;256r^[[256;256H^[[6n 2020-08-27 0...

I've pushed this change already actually. No one seems to know if this option is safe. If you see strange timing-related things happening in libguestfs, let us know! Rich.

...ideo chipset and the laptop has an Intel processor and an Intel graphic controller. Although I can't see how either the processor or video chipset would have anything to to with the USB or USB serial port-type devices. The desktop also has a PCI quad serial port card and includes the 8250.nr_uarts=8 kernel option and is set up to use an analog dialup modem to make PPP connections (again, I don't see that as having anything to do with anything). Both machines are running the same kernel: 2.6.32-573.12.1.el6.x86_64 At Thu, 4 Feb 2016 16:13:33 -0500 Robert Heller <heller at deepso...

I just installed CentOS 5.1 on a Dell Vostro 200 (Intel G33) which has a Sunix PCI-Express (x1) 8-port RS-232 card installed. For me it looks like only 4 ports are recognized, but I'm not sure if it's even working with those 4. >From 'dmesg' I see this: ... Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 19

How do you go about configuring comm ports in Wine? I have a usb to serial adapter that is using ttyUSB1 under linux. The program I want to use under wine shows only the standard Windows comm ports; i.e, com1, com2, etc. How can I redirect those to ttyUSB1? dick

...popped in the new processor -- should I have changed a BIOS setting or something? Boot params: title CentOS (2.6.18-348.3.1.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-348.3.1.el5 dom0_mem=3072M module /vmlinuz-2.6.18-348.3.1.el5xen ro root=/dev/mapper/sauron-c5root 8250.nr_uarts=8 xencons=off max_loop=32 irqpoll module /initrd-2.6.18-348.3.1.el5xen.img -- Robert Heller -- 978-544-6933 / heller at deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www....

...pliance.d/kernel</kernel>\n    <initrd>/var/tmp/.guestfs-1001/appliance.d/initrd</initrd>\n    <cmdline>panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm</cmdline>\n    <bios useserial="yes"/>\n  </os>\n  <on_reboot>destroy</on_reboot>\n  <devices>\n    <rng model="virtio">\n      <backend model="random">/dev/urandom&l...

...UEHqc9/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' nbdkit: debug: accepted connection nbdkit: debug: /home/rjones/d/nbdkit/plugins/nbd/.libs/nbdkit-nbd-plugin.so: open readonly=0 nbdkit: debug: accepted connection nbdkit: debug: /home/rjones/d/nbdkit/plugins/nbd/.libs/nbdkit-nbd-p...

When converting from a single transaction to a linked list, I forgot to free the storage for each member of the list. Reported-by: Richard W.M. Jones <rjones at redhat.com> Fixes: 7f5bb9bf13f041ea7702bda557d9dd668bc3423a Signed-off-by: Eric Blake <eblake at redhat.com> --- I'm still not sure why 'make check' passes while 'make check-valgrind' fails for

...amp;nbsp; <initrd&gt;/var/tmp/.guestfs-0/appliance.d/initrd</initrd&gt;\n&nbsp; &nbsp; <cmdline&gt;panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color</cmdline&gt;\n&nbsp; &nbsp; <bios useserial="yes"/&gt;\n&nbsp; </os&gt;\n&nbsp; <on_reboot&gt;destroy</on_reboot&gt;\n&nbsp; <devices&gt;\n&nbsp; &nbsp; &l...

...> an > Intel processor and an Intel graphic controller. Although I can't see how > either the processor or video chipset would have anything to to with the > USB > or USB serial port-type devices. The desktop also has a PCI quad serial > port > card and includes the 8250.nr_uarts=8 kernel option and is set up to use an > analog dialup modem to make PPP connections (again, I don't see that as > having > anything to do with anything). > > Both machines are running the same kernel: 2.6.32-573.12.1.el6.x86_64 > > > > > At Thu, 4 Feb 2016 16:13:...